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工具箱有两种实现方式,一是运用工具栏QToolBar,二是运用QButtonGroup,在按钮组内创建多个QPushButton,每个按钮对应不同的槽函数。
本节的“工具箱”窗口是QDockWidget类型,通过在停靠窗口上添加控件来实现工具箱功能。
在头文件中添加
private:
int drawType; // 绘制类型
QButtonGroup *toolButtonGroup; // 按钮组
void ToolWin(); // 工具箱窗口
private slots :
void toolButtonClicked(int id); // 绘图槽函数ButtonGroup
在CPP文件的构造函数中添加
mainWindow::mainWindow(QWidget *parent)
: QMainWindow(parent)
{
ui.setupUi(this);
......
ToolWin(); // 工具箱窗口
}
void mainWindow::ToolWin() // 工具箱窗口
{
//dock_Tool = new QDockWidget(tr("工具箱"), this); // 工具栏
//dock_Tool->setFeatures(QDockWidget::DockWidgetClosable);
QPushButton *button_pen = new QPushButton(QIcon("../Image/toolbox/Painbrush.png"), tr(""), this);
button_pen->setFixedSize(35, 35);
button_pen->setToolTip(tr("钢笔"));
button_pen->setObjectName("customButton");
QPushButton *button_line = new QPushButton(QIcon("../Image/toolbox/Line.png"), tr(""), this);
button_line->setFixedSize(35, 35);
button_line->setToolTip(tr("线条"));
button_line->setObjectName("customButton");
QPushButton *button_circle = new QPushButton(QIcon("../Image/toolbox/Circle.png"), tr(""), this);
button_circle->setFixedSize(35, 35);
button_circle->setToolTip(tr("圆形"));
button_circle->setObjectName("customButton");
QPushButton *button_ellipse = new QPushButton(QIcon("../Image/toolbox/Elipse.png"), tr(""), this);
button_ellipse->setFixedSize(35, 35);
button_ellipse->setToolTip(tr("椭圆"));
button_ellipse->setObjectName("customButton");
QPushButton *button_triangle = new QPushButton(QIcon("../Image/toolbox/Triangle.png"), tr(""), this);
button_triangle->setFixedSize(35, 35);
button_triangle->setToolTip(tr("三角形"));
button_triangle->setObjectName("customButton");
QPushButton *button_rhombus = new QPushButton(QIcon("../Image/toolbox/Rhombus.png"), tr(""), this);
button_rhombus->setFixedSize(35, 35);
button_rhombus->setToolTip(tr("菱形"));
button_rhombus->setObjectName("customButton");
QPushButton *button_rect = new QPushButton(QIcon("../Image/toolbox/Rectangle.png"), tr(""), this);
button_rect->setFixedSize(35, 35);
button_rect->setToolTip(tr("长方形"));
button_rect->setObjectName("customButton");
QPushButton *button_square = new QPushButton(QIcon("../Image/toolbox/Square.png"), tr(""), this);
button_square->setFixedSize(35, 35);
button_square->setToolTip(tr("正方形"));
button_square->setObjectName("customButton");
QPushButton *button_hexagon = new QPushButton(QIcon("../Image/toolbox/Hexagon.png"), tr(""), this);
button_hexagon->setFixedSize(35, 35);
button_hexagon->setToolTip(tr("六边形"));
button_hexagon->setObjectName("customButton");
QGridLayout *toolLayout = new QGridLayout();
toolLayout->setAlignment(Qt::AlignTop);
toolLayout->addWidget(button_pen, 0, 0);
toolLayout->addWidget(button_line, 0, 1);
toolLayout->addWidget(button_ellipse, 1, 1);
toolLayout->addWidget(button_circle, 1, 0);
toolLayout->addWidget(button_triangle, 2, 0);
toolLayout->addWidget(button_rhombus, 2, 1);
toolLayout->addWidget(button_rect, 3, 0);
toolLayout->addWidget(button_square, 3, 1);
toolLayout->addWidget(button_hexagon, 4, 0);
QWidget *toolWidget = new QWidget(dock_Tool);
toolWidget->setLayout(toolLayout);
dock_Tool->setWidget(toolWidget);
// 按钮组 QButtonGroup
toolButtonGroup = new QButtonGroup();
toolButtonGroup->addButton(button_pen, 1); // 自动分配的id为复数,从-2开始,
toolButtonGroup->addButton(button_line, 2); // 最好自己指定id,使用正数以避免冲突。
toolButtonGroup->addButton(button_ellipse, 3);
toolButtonGroup->addButton(button_circle, 4);
toolButtonGroup->addButton(button_triangle, 5);
toolButtonGroup->addButton(button_rhombus, 6);
toolButtonGroup->addButton(button_rect, 7);
toolButtonGroup->addButton(button_square, 8);
toolButtonGroup->addButton(button_hexagon, 9);
connect(toolButtonGroup, SIGNAL(buttonClicked(int)), this, SLOT(toolButtonClicked(int))); // 按钮组的槽函数
}
// 绘图槽函数ButtonGroup
void mainWindow::toolButtonClicked(int id)
{
QList<QAbstractButton *> buttons = toolButtonGroup->buttons();
foreach(QAbstractButton *button, buttons)
{
if (toolButtonGroup->button(id) != button) // 按钮组内其它按钮设置为不可用
button->setChecked(false);
else if (drawType == id) // 如果绘制类型与前次相同,则退出绘制模式
drawType = 0;
else
drawType = id;
}
switch (drawType)
{
case 0:
QMessageBox::information(this, tr("绘制"), tr("退出绘制模式!")); // 后续将改为绘制功能函数
break;
case 1:
QMessageBox::information(this, tr("绘制"), tr("钢笔!")); break;
case 2:
QMessageBox::information(this, tr("绘制"), tr("线条!")); break;
case 3:
QMessageBox::information(this, tr("绘制"), tr("椭圆形!")); break;
case 4:
QMessageBox::information(this, tr("绘制"), tr("圆形!")); break;
case 5:
QMessageBox::information(this, tr("绘制"), tr("三角形!")); break;
case 6:
QMessageBox::information(this, tr("绘制"), tr("菱形!")); break;
case 7:
QMessageBox::information(this, tr("绘制"), tr("长方形!")); break;
case 8:
QMessageBox::information(this, tr("绘制"), tr("正方形!")); break;
case 9:
QMessageBox::information(this, tr("绘制"), tr("六边形!")); break;
default:
break;
}
}
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原文链接 : https://blog.csdn.net/u013165921/article/details/79391753
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